Colour
#423A41
- #423A41
- Grey
- Dark
- Nearest: Dark slate grey
#423A41 is a grey with RGB values 66, 58, 65 and HSL 308°, 6%, 24%. It is a dark colour, so white text on it reaches 11:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.
Colour values
#423A41#423A41
HEX#423A41
RGBrgb(66, 58, 65)
RGB (0–1)0.2588, 0.2275, 0.2549
RGB percentages25.9%, 22.7%, 25.5%
HSLhsl(307.5, 6.5%, 24.3%)
HSV / HSBhsv(307.5, 12.1%, 25.9%)
CMYK0%, 12.1%, 1.5%, 74.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,340,289
CSS custom property--colour: #423A41;
Brightness & contrast
Relative luminance0.04566WCAG 2.x, 0 is black and 1 is white
Perceived brightness61.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.98:1
Contrast with white10.98:1WCAG normal text: AAA
Contrast with black1.91:1WCAG normal text: Fail
Greyscale equivalent#3C3C3C
Inverted#BDC5BE
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.98:1WCAG large text: AAA
Contrast with black, large text1.91:1WCAG large text: Fail
Named colours
Hue familygrey
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#3A423B
Analogous#3F3A42, #423A3D
Triadic#41423A, #3A4142
Split complementary#3D423A, #3A423F
Tetradic#423F3A, #3A423B, #3A3D42
Tints, shades & saturation
Channel breakdown
R66
G58
B65
Red66 (25.9%)
Green58 (22.7%)
Blue65 (25.5%)
Hue307.5°
Saturation (HSL)6.45%
Lightness24.31%
Dominant channelRed
Hex per channelR 42 · G 3A · B 41
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